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Depending on the end connection type, flanges can be seperated into 7 common types ,threaded flanges(THD), socket weld flanges(SW), lap Joint flanges(LAPJ), slip on flanges(SO) blind flanges(BL), weld neck flanges(WN), spectacle flanges(SPEC). Further classified on the pressure rating, there are class 150, class 300, class 6000, class 9000, class 1500, and class 2500.
So we can combine these two factors together to have a class 900 threaded flange.
Materials Can be applied on Class 900 Threaded Flange
Materials commonly used in the manufacturing of forged steel flange all fit in class 900 threaded flange, they can be seperated in to four different types. They may have different name in different county standard, but you can specify them through their chemical composition and mechanical property. Also it is OK if the manufacturing standard and material standard come from different countries’ industrial system, we can manufacture them as long as you clarify them.
Standard | ASME B16.5, EN1092-1 |
Carbon Steel | ASTM A105 / A105N |
Low Temp Carbon Steel | ASTM A350 LF2/LF3 |
Pipeline Steel | ASTM A694 F42 / 46 / 56 / 60 / 65 |
Alloy Steel | ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 |
Usage and Advantage
Class 900 threaded flanges are widely used within the oil field service, with the threads end connection type, they are with sealing property and easy to disassemble at the same time. Because they can be used without welding process, it has low requirement to the workers technique and can avoid the corrosion on welded lines, if there is corrosion, it can also be replaced very easily, this is the most key advantage of the threaded flanges.
Dimensions of Class 900 Threaded Flange
| Pipe | FlangeData | Hub | Raised | DrillingData | Weight | |||||||
| Face | ||||||||||||
| Nominal PipeSize | A | B | C | D | E | F | G | H | I | J | ||
| Outside | Diameter | Counter- | Flange | Overall | Threaded | Hub | Face | Number | BoltHole | Diameter | kg/ | |
| Diameter | Overall | bore | Thickness | Length | length | Diameter | Diameter | of Holes | Diameter | of Circle | piece | |
| min | min | min | of Holes | |||||||||
| in | in | in | in | in | in | in | in | in | in | |||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | |||
| 1/2 | 0.84 | 4.75 | 0.93 | 0.88 | 1.25 | 0.88 | 1.5 | 1.38 | 4 | 0.88 | 3.25 | 1.74 |
| 21.3 | 120.6 | 23.6 | 22.3 | 31.7 | 22.3 | 38.1 | 35.1 | 22.3 | 82.5 | |||
| 3/4 | 1.05 | 5.12 | 1.14 | 1 | 1.38 | 1 | 1.75 | 1.69 | 4 | 0.88 | 3.5 | 2.34 |
| 26.7 | 130 | 29 | 25.4 | 35 | 25.4 | 44.4 | 42.9 | 22.3 | 88.9 | |||
| 1 | 1.315 | 5.88 | 1.41 | 1.12 | 1.62 | 1.12 | 2.06 | 2 | 4 | 1 | 4 | 3.44 |
| 33.4 | 149.3 | 35.8 | 28.4 | 41.1 | 28.4 | 52.3 | 50.8 | 25.4 | 101.6 | |||
| 1-1/4 | 1.66 | 6.25 | 1.75 | 1.12 | 1.62 | 1.19 | 2.5 | 2.5 | 4 | 1 | 4.38 | 3.91 |
| 42.2 | 158.7 | 44.4 | 28.4 | 41.1 | 30.2 | 63.5 | 63.5 | 25.4 | 111.2 | |||
| 1-1/2 | 1.9 | 7 | 1.99 | 1.25 | 1.75 | 1.25 | 2.75 | 2.88 | 4 | 1.12 | 4.88 | 5.36 |
| 48.3 | 177.8 | 50.5 | 31.7 | 44.5 | 31.7 | 69.85 | 73.15 | 28.4 | 123.9 | |||
| 2 | 2.375 | 8.5 | 2.5 | 1.5 | 2.25 | 1.5 | 4.12 | 3.62 | 8 | 1 | 6.5 | 9.85 |
| 60.3 | 215.9 | 63.5 | 38.1 | 57.15 | 38.1 | 104.6 | 91.9 | 25.4 | 165.1 | |||
| 2-1/2 | 2.875 | 9.62 | 3 | 1.62 | 2.5 | 1.88 | 4.88 | 4.12 | 8 | 1.12 | 7.5 | 13.7 |
| 73 | 244.3 | 76.2 | 41.1 | 63.5 | 47.7 | 123.9 | 104.6 | 28.4 | 190.5 | |||
| 3 | 3.5 | 9.5 | 3.63 | 1.5 | 2.12 | 1.62 | 5 | 5 | 8 | 1 | 7.5 | 11.6 |
| 88.9 | 241.3 | 92.2 | 38.1 | 53.8 | 41.1 | 127 | 127 | 25.4 | 190.5 | |||
| 4 | 4.5 | 11.5 | 4.63 | 1.75 | 2.75 | 1.88 | 6.25 | 6.19 | 8 | 1.25 | 9.25 | 19.7 |
| 114.3 | 292.1 | 117.6 | 44.4 | 69.85 | 47.8 | 158.7 | 157.2 | 31.7 | 234.9 | |||
| 5 | 5.563 | 13.75 | 5.69 | 2 | 3.12 | 2.12 | 7.5 | 7.31 | 8 | 1.38 | 11 | 31.9 |
| 141.3 | 349.2 | 144.5 | 50.8 | 79.25 | 53.8 | 190.5 | 185.7 | 35 | 279.4 | |||
| 6 | 6.625 | 15 | 6.75 | 2.19 | 3.38 | 2.25 | 9.25 | 8.5 | 12 | 1.25 | 12.5 | 41.1 |
| 168.3 | 381 | 171.4 | 55.6 | 85.8 | 57.15 | 234.9 | 215.9 | 31.7 | 317.5 | |||
| 8 | 8.625 | 18.5 | 8.75 | 2.5 | 4 | 2.5 | 11.75 | 10.62 | 12 | 1.5 | 15.5 | 70.7 |
| 219.1 | 469.9 | 222.2 | 63.5 | 101.6 | 63.5 | 298.4 | 269.7 | 38.1 | 393.7 | |||
| 10 | 10.75 | 21.5 | 10.88 | 2.75 | 4.25 | 2.81 | 14.5 | 12.75 | 16 | 1.5 | 18.5 | 101 |
| 273 | 546.1 | 276.3 | 69.85 | 107.9 | 71.4 | 368.3 | 323.9 | 38.1 | 469.9 | |||
| 12 | 12.75 | 24 | 12.94 | 3.12 | 4.62 | 3 | 16.5 | 15 | 20 | 1.5 | 21 | 133 |
| 323.8 | 609.6 | 328.7 | 79.4 | 117.3 | 76.2 | 419.1 | 381 | 38.1 | 533.4 | |||
| 14 | 14 | 25.25 | 14.19 | 3.38 | 5.12 | 3.25 | 17.75 | 16.25 | 20 | 1.62 | 22 | 153 |
| 355.6 | 641.3 | 360.4 | 85.7 | 130 | 82.5 | 450.8 | 412.7 | 41.1 | 558.8 | |||
| 16 | 16 | 27.75 | 16.19 | 3.5 | 5.25 | 3.38 | 20 | 18.5 | 20 | 1.75 | 24.25 | 185 |
| 406.4 | 704.8 | 411.2 | 88.9 | 133.3 | 85.9 | 508 | 469.9 | 44.4 | 618.9 | |||
| 18 | 18 | 31 | 18.19 | 4 | 6 | 3.5 | 22.25 | 21 | 20 | 2 | 27 | 258 |
| 457.2 | 787.4 | 462 | 101.6 | 152.4 | 88.9 | 565.1 | 533.4 | 50.8 | 685.8 | |||
| 20 | 20 | 33.75 | 20.19 | 4.25 | 6.25 | 3.62 | 24.5 | 23 | 20 | 2.12 | 29.5 | 317 |
| 508 | 857.2 | 512.8 | 107.9 | 158.7 | 91.9 | 622.3 | 584.2 | 53.8 | 749.3 | |||
| 24 | 24 | 41 | 24.19 | 5.5 | 8 | 4 | 29.5 | 27.25 | 20 | 2.62 | 35.5 | 606 |
| 609.6 | 1041.4 | 614.4 | 139.7 | 203.2 | 101.6 | 749.3 | 692.2 | 66.55 | 901.7 | |||
Depending on the end connection type, flanges can be seperated into 7 common types ,threaded flanges(THD), socket weld flanges(SW), lap Joint flanges(LAPJ), slip on flanges(SO) blind flanges(BL), weld neck flanges(WN), spectacle flanges(SPEC). Further classified on the pressure rating, there are class 150, class 300, class 6000, class 9000, class 1500, and class 2500.
So we can combine these two factors together to have a class 900 threaded flange.
Materials Can be applied on Class 900 Threaded Flange
Materials commonly used in the manufacturing of forged steel flange all fit in class 900 threaded flange, they can be seperated in to four different types. They may have different name in different county standard, but you can specify them through their chemical composition and mechanical property. Also it is OK if the manufacturing standard and material standard come from different countries’ industrial system, we can manufacture them as long as you clarify them.
Standard | ASME B16.5, EN1092-1 |
Carbon Steel | ASTM A105 / A105N |
Low Temp Carbon Steel | ASTM A350 LF2/LF3 |
Pipeline Steel | ASTM A694 F42 / 46 / 56 / 60 / 65 |
Alloy Steel | ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 |
Usage and Advantage
Class 900 threaded flanges are widely used within the oil field service, with the threads end connection type, they are with sealing property and easy to disassemble at the same time. Because they can be used without welding process, it has low requirement to the workers technique and can avoid the corrosion on welded lines, if there is corrosion, it can also be replaced very easily, this is the most key advantage of the threaded flanges.
Dimensions of Class 900 Threaded Flange
| Pipe | FlangeData | Hub | Raised | DrillingData | Weight | |||||||
| Face | ||||||||||||
| Nominal PipeSize | A | B | C | D | E | F | G | H | I | J | ||
| Outside | Diameter | Counter- | Flange | Overall | Threaded | Hub | Face | Number | BoltHole | Diameter | kg/ | |
| Diameter | Overall | bore | Thickness | Length | length | Diameter | Diameter | of Holes | Diameter | of Circle | piece | |
| min | min | min | of Holes | |||||||||
| in | in | in | in | in | in | in | in | in | in | |||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | |||
| 1/2 | 0.84 | 4.75 | 0.93 | 0.88 | 1.25 | 0.88 | 1.5 | 1.38 | 4 | 0.88 | 3.25 | 1.74 |
| 21.3 | 120.6 | 23.6 | 22.3 | 31.7 | 22.3 | 38.1 | 35.1 | 22.3 | 82.5 | |||
| 3/4 | 1.05 | 5.12 | 1.14 | 1 | 1.38 | 1 | 1.75 | 1.69 | 4 | 0.88 | 3.5 | 2.34 |
| 26.7 | 130 | 29 | 25.4 | 35 | 25.4 | 44.4 | 42.9 | 22.3 | 88.9 | |||
| 1 | 1.315 | 5.88 | 1.41 | 1.12 | 1.62 | 1.12 | 2.06 | 2 | 4 | 1 | 4 | 3.44 |
| 33.4 | 149.3 | 35.8 | 28.4 | 41.1 | 28.4 | 52.3 | 50.8 | 25.4 | 101.6 | |||
| 1-1/4 | 1.66 | 6.25 | 1.75 | 1.12 | 1.62 | 1.19 | 2.5 | 2.5 | 4 | 1 | 4.38 | 3.91 |
| 42.2 | 158.7 | 44.4 | 28.4 | 41.1 | 30.2 | 63.5 | 63.5 | 25.4 | 111.2 | |||
| 1-1/2 | 1.9 | 7 | 1.99 | 1.25 | 1.75 | 1.25 | 2.75 | 2.88 | 4 | 1.12 | 4.88 | 5.36 |
| 48.3 | 177.8 | 50.5 | 31.7 | 44.5 | 31.7 | 69.85 | 73.15 | 28.4 | 123.9 | |||
| 2 | 2.375 | 8.5 | 2.5 | 1.5 | 2.25 | 1.5 | 4.12 | 3.62 | 8 | 1 | 6.5 | 9.85 |
| 60.3 | 215.9 | 63.5 | 38.1 | 57.15 | 38.1 | 104.6 | 91.9 | 25.4 | 165.1 | |||
| 2-1/2 | 2.875 | 9.62 | 3 | 1.62 | 2.5 | 1.88 | 4.88 | 4.12 | 8 | 1.12 | 7.5 | 13.7 |
| 73 | 244.3 | 76.2 | 41.1 | 63.5 | 47.7 | 123.9 | 104.6 | 28.4 | 190.5 | |||
| 3 | 3.5 | 9.5 | 3.63 | 1.5 | 2.12 | 1.62 | 5 | 5 | 8 | 1 | 7.5 | 11.6 |
| 88.9 | 241.3 | 92.2 | 38.1 | 53.8 | 41.1 | 127 | 127 | 25.4 | 190.5 | |||
| 4 | 4.5 | 11.5 | 4.63 | 1.75 | 2.75 | 1.88 | 6.25 | 6.19 | 8 | 1.25 | 9.25 | 19.7 |
| 114.3 | 292.1 | 117.6 | 44.4 | 69.85 | 47.8 | 158.7 | 157.2 | 31.7 | 234.9 | |||
| 5 | 5.563 | 13.75 | 5.69 | 2 | 3.12 | 2.12 | 7.5 | 7.31 | 8 | 1.38 | 11 | 31.9 |
| 141.3 | 349.2 | 144.5 | 50.8 | 79.25 | 53.8 | 190.5 | 185.7 | 35 | 279.4 | |||
| 6 | 6.625 | 15 | 6.75 | 2.19 | 3.38 | 2.25 | 9.25 | 8.5 | 12 | 1.25 | 12.5 | 41.1 |
| 168.3 | 381 | 171.4 | 55.6 | 85.8 | 57.15 | 234.9 | 215.9 | 31.7 | 317.5 | |||
| 8 | 8.625 | 18.5 | 8.75 | 2.5 | 4 | 2.5 | 11.75 | 10.62 | 12 | 1.5 | 15.5 | 70.7 |
| 219.1 | 469.9 | 222.2 | 63.5 | 101.6 | 63.5 | 298.4 | 269.7 | 38.1 | 393.7 | |||
| 10 | 10.75 | 21.5 | 10.88 | 2.75 | 4.25 | 2.81 | 14.5 | 12.75 | 16 | 1.5 | 18.5 | 101 |
| 273 | 546.1 | 276.3 | 69.85 | 107.9 | 71.4 | 368.3 | 323.9 | 38.1 | 469.9 | |||
| 12 | 12.75 | 24 | 12.94 | 3.12 | 4.62 | 3 | 16.5 | 15 | 20 | 1.5 | 21 | 133 |
| 323.8 | 609.6 | 328.7 | 79.4 | 117.3 | 76.2 | 419.1 | 381 | 38.1 | 533.4 | |||
| 14 | 14 | 25.25 | 14.19 | 3.38 | 5.12 | 3.25 | 17.75 | 16.25 | 20 | 1.62 | 22 | 153 |
| 355.6 | 641.3 | 360.4 | 85.7 | 130 | 82.5 | 450.8 | 412.7 | 41.1 | 558.8 | |||
| 16 | 16 | 27.75 | 16.19 | 3.5 | 5.25 | 3.38 | 20 | 18.5 | 20 | 1.75 | 24.25 | 185 |
| 406.4 | 704.8 | 411.2 | 88.9 | 133.3 | 85.9 | 508 | 469.9 | 44.4 | 618.9 | |||
| 18 | 18 | 31 | 18.19 | 4 | 6 | 3.5 | 22.25 | 21 | 20 | 2 | 27 | 258 |
| 457.2 | 787.4 | 462 | 101.6 | 152.4 | 88.9 | 565.1 | 533.4 | 50.8 | 685.8 | |||
| 20 | 20 | 33.75 | 20.19 | 4.25 | 6.25 | 3.62 | 24.5 | 23 | 20 | 2.12 | 29.5 | 317 |
| 508 | 857.2 | 512.8 | 107.9 | 158.7 | 91.9 | 622.3 | 584.2 | 53.8 | 749.3 | |||
| 24 | 24 | 41 | 24.19 | 5.5 | 8 | 4 | 29.5 | 27.25 | 20 | 2.62 | 35.5 | 606 |
| 609.6 | 1041.4 | 614.4 | 139.7 | 203.2 | 101.6 | 749.3 | 692.2 | 66.55 | 901.7 | |||
